<p>To ask the Secretary of State for Work and Pensions pursuant to the answer of 12 September 2013, Official Report, column 829-30W, on employment and support allowance, what categories of prognosis have been adopted by his Department; when these categories were adopted; what guidance has been issued on determining the circumstances in which a health condition falls into a particular category; and what the evidential basis is for the selection of each category.</p>